Sensilla types on the palps of Trichoptera. A. Long trichoid and chaetoid sensilla on the third segment of a maxillary palp of a Rhyacophila fasciata aliena female; B. Long chaetoid sensillum on the second segment of a maxillary palp of a Rhyacophila fasciata aliena male; C. Campaniform sensillum on the first segment of a labial palp of a Chimarra marginata male; D. mushroom-like pseudoplacoid sensillum on the fourth segment of a maxillary palp of a Chimarra thienemanni male; E. Flattened petaloid sensilla on the third segment of a labial palp of a Oligotricha lapponica male; F. Curved petaloid sensilla on the third segment of a maxillary palp of a Oligotricha lapponica male; G. Apical sensory complex of a maxillary palp of a Dolophilodes ornata male; H. Apical sensory complex of a maxillary palp of a Rhyacophila nubila female; I. Thin basiconic sensillum on the fifth segment of a maxillary palp of a G. altaicum male. Abbreviations: bcs = thin basiconic sensilla; cfs = campaniform sensilla; chs-l = long blunt chaetoid sensilla; chs-s = short blunt chaetoid sensilla; lts = pointed long trichoid sensilla; mps = mushroom-like pseudoplacoid sensilla; pes = petaloid sensilla; sf = sensory field; tbs = thick basiconic sensilla.